A defective ceiling fan remote control is causing widespread disruption to vehicles equipped with smart key systems. The remote emits a signal on the 433.918 MHz frequency, creating interference that disables the functionality of numerous car and motorcycle smart keys. Affected vehicles are unable to start or operate normally due to the signal disruption. The issue highlights potential vulnerabilities in the security and operation of keyless entry systems. Authorities have not yet determined the extent of the impact or the specific models affected. This incident raises concerns about electromagnetic interference and its potential to compromise vehicle security. Investigations are underway to understand the scope of the problem and prevent future occurrences.